Flatten each roll into a 4-inch circle. Place a large teaspoon of jam in the center of each circle. Pull the edges of each roll up over the jam and pinch together. Combine brown sugar and crushed almonds in a shallow bowl. Combine butter and vanilla in another bowl. Dip each jam filled roll into butter mixture and then into brown sugar mixture. Place each one, pinched side up in a sprayed muffin cup. If you have any extra brown sugar mixture. Sprinkle over the top. Cover with plastic wrap and let rise until double in size. Bake at 350°F 12-15 minutes.
Combine all glaze ingredients and mix well. Drizzle over the top of slightly cooled rolls. Sprinkle with sliced almonds if desired.